Results 3 comments of dkanaev

@jordimontana82 I faced the same problem, in my case, the problem is in this line ![image](https://user-images.githubusercontent.com/5987954/133208113-00068352-119b-4787-8fe4-01e30b0d785e.png)

@BetimBeja yes, I created Early Bound Entities. But, it is not an object type. [AttributeLogicalName("rr_unitcategories")] public virtual IEnumerable rr_UnitCategories { get; set; } This property was autogenerated for multi-select optionset...

The point is I use EarlyBoundGenerator to generate this code and at the moment I did not find how to configure it for generating class instead of interface